TMS27C512 65536 BY 8-BIT UV ERASABLE TMS27PC512 65536 BY 8-BIT PROGRAMMABLE READ-ONLY MEMORIES

SMLS512G - NOVEMBER 1985 - REVISED SEPTEMBER 1997

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features

Organization...65536 by 8 Bits
Single 5-V Power Supply
Pin Compatible With Existing 512K MOS ROMs, PROMs, and EPROMs
All Inputs/Outputs Fully TTL Compatible
Max Access/Min Cycle Time
V_CC ± 10%
'27C/PC512-10 100 ns
'27C/PC512-12 120 ns
'27C/PC512-15 150 ns '27C/PC512-20 200 ns '27C/PC512-25 250 ns
Power Saving CMOS Technology
Very High-Speed SNAP! Pulse Programming
3-State Output Buffers
400-mV Minimum DC Noise Immunity With Standard TTL Loads
Latchup Immunity of 250 mA on All Input and Output Lines
Low Power Dissipation (V_CC = 5.25 V)
- Active ...158 mW Worst Case
- Standby...1.4 mW Worst Case (CMOS Input Levels)
Temperature Range Options
512K EPROM Available With MIL-STD-883C Class B High Reliability Processing (SMJ27C512)

description

The TMS27C512 series are 65536 by 8-bit (524288-bit), ultraviolet (UV) light erasable, electrically programmable read-only memories (EPROMs).

The TMS27PC512 series are 65536 by 8-bit (524288-bit), one-time programmable (OTP) electrically programmable read-only memories (PROMs).

These devices are fabricated using power-saving CMOS technology for high speed and simple interface with MOS and bipolar circuits. All inputs (including program data inputs) can be driven by Series 74 TTL circuits without the use of external pullup resistors. Each output can drive one Series 74 TTL circuit without external resistors.

The data outputs are 3-state for connecting multiple devices to a common bus. The TMS27C512 and the TMS27PC512 are pin compatible with 28-pin 512K MOS ROMs, PROMs, and EPROMs.

The TMS27C512 EPROM is offered in a dual-in-line ceramic package (J suffix) designed for insertion in mounting hole rows on 15,2-mm (600-mil) centers. The TMS27PC512 OTP PROM is supplied in a 32-lead plastic leaded chip carrier package using 1,25-mm (50-mil) lead spacing (FM suffix).

The TMS27C512 and TMS27PC512 are offered with two choices of temperature ranges of 0°C to 70°C (JL and FML suffix) and -40°C to 85°C (JE and FME suffix). See Table 1.

All package styles conform to JEDEC standards.

These EPROMs and OTP PROMs operate from a single 5-V supply (in the read mode), thus are ideal for use in microprocessor-based systems. One other 13-V supply is needed for programming. All programming signals are TTL level. The device is programmed using the SNAP! Pulse programming algorithm. The SNAP! Pulse programming algorithm uses a V_PP of 13 V and a V_CC of 6.5 V for a nominal programming time of seven seconds. For programming outside the system, existing EPROM programmers can be used. Locations can be programmed singly, in blocks, or at random.

Title: 65536 BY 8-BIT PROGRAMMABLE READ-ONLY MEMORIES
Product Family: EPROM
Device Functionality: EPROM-512K(64KX8)
Orderable Devices: TMS27C512-10JE, TMS27C512-10JL, TMS27C512-120JL, TMS27C512-12JE, TMS27C512-12JL, TMS27C512-150JE, TMS27C512-150JL, TMS27C512-15JE, TMS27C512-15JL, TMS27C512-1JE, TMS27C512-1JL, TMS27C512-20JE, TMS27C512-20JL, TMS27C512-25JL, TMS27C512-2JE, TMS27C512-2JE4, TMS27C512-2JL, TMS27C512JE, TMS27C512JL, TMS27PC512-10FML, TMS27PC512-120FML, TMS27PC512-12FME, TMS27PC512-12FML, TMS27PC512-12NL, TMS27PC512-150FML, TMS27PC512-150NL, TMS27PC512-15FML, TMS27PC512-15NL, TMS27PC512-1FML, TMS27PC512-20FME, TMS27PC512-20FML, TMS27PC512-20NL, TMS27PC512-25FML, TMS27PC512-25NL, TMS27PC512-2FME, TMS27PC512-2FML, TMS27PC512-2NE, TMS27PC512-2NL, TMS27PC512NL

View the complete PDF datasheet: smls512g.pdf (192 K Bytes) (Requires Acrobat Reader 3.x)

View more information about generic part numbers:TMS27C512, TMS27PC512

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